21505604

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{313}}^1$

素因数の和:599

約数の個数: 24

約数和(自身を含む): 38377080

約数和(自身を除く): 16871476

約数列:

[1, 2, 4, 89, 178, 193, 313, 356, 386, 626, 772, 1252, 17177, 27857, 34354, 55714, 60409, 68708, 111428, 120818, 241636, 5376401, 10752802, 21505604]

約数ペア:

[(1, 21505604), (2, 10752802), (4, 5376401), (89, 241636), (178, 120818), (193, 111428), (313, 68708), (356, 60409), (386, 55714), (626, 34354), (772, 27857), (1252, 17177)]